<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <link rel="stylesheet" href="../assets/mui-master/dist/css/mui.min.css">
    <script src="../assets/mui-master/dist/js/mui.min.js"></script>
    <script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.js"></script>
    <style>
        .mui-input-range input[type=range]{
            background: -webkit-linear-gradient(#61bd12, #61bd12) no-repeat, #ddd;
            background-size: 50% 100%;
        }
    </style>
    <script>
        $(function(){
            $('span').css('top','50px');
            $('input').change(function () {
                $('.mui-input-range input[type=range]').css("background-size",$('.mui-input-range input[type=range]').val()+'% 100%');
            })
        })
    </script>
</head>
<body>
<div class="mui-input-row mui-input-range">
    <label>Range</label>
    <input type="range" min="0" max="100">
</div>
</body>
</html>